I am sorry if this is unnecessary topic - I tried to find an answer, but was unsuccessful. I remember seeing one of your tutorials, where you showed us "by the way" how to open a folder with Thunar as root. If I am correct, a yellow line appeared at the top of Thunar, showing us we have to be careful with permissions we have. Since this wasn't topic of tutorial, it's really hard to find it.
Could you help me with that? How do you "elevate" yourself to admin inside Thunar?

Right mouse click on the folder you want open, will open a context menu in thunar - open folder as root.
Right mouse click inside the folder you are in, will open a context menu in thunar - open folder as root

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